Resources Contact Us Home
Apparatus and method for implanting a prosthetic acetabular cup and then testing the stability of the implant

Image Number 4 for United States Patent #5320625.

An implantation instrument and methods for reliably implanting a prosthetic acetabular cup in the acetabular area of the pelvic bone during a total prosthetic hip implant operation are disclosed. Such implantation device and methods also provide means for determining the adequacy or strength of the implant.The implantation device includes means for receiving an implantation force from, for example a mallet, and imparting this force to press fit the prosthetic acetabular cup into a recess formed in the acetabular area of the pelvic bone. The apparatus also includes means for testing the strength or adequacy of the acetabular cup implant by receiving and imparting a torquing moment. Finally, the apparatus includes an alignment arm which is laterally displaced from the longitudinal axis of the apparatus, and selectively fixed or rotatably connected, in order to implant the prosthetic acetabular cup in the desired orientation.The prosthetic acetabular cup contains a threaded recess therethrough, while the implantation instrument contains a threaded tip, for releasably connecting the acetabular cup and the implantation device. The cup is able to withstand forces associated with the steps of applying an implanting force and a torquing moment to test the stability of the implant.

  Recently Added Patents
Method for transmitting an electronic short message to multiple receivers
Synergistic compositions for the treatment of topical viral infections
Peer to peer (P2P) missing fields and field valuation feedback
Image processing device, image processing method, and program
Probe for ultrasound diagnostic apparatus
Providing user interfaces and window previews for hosted applications
Driving apparatus having an optical sensor and a thermal sensor for thermal and aging compensation of backlight module and driving method of backlight module
  Randomly Featured Patents
Wind powered electric generator
Magnetic pad for end-effectors
Managing a device in a distributed file system, using plug and play
Medicament container with same side airflow inlet and outlet and method of use
Chime cover plate
Refrigerator with ice feeding unit
Cargo tie-down
Implantable medical device package antenna
Modular programmable delay line blocks for use in a delay locked loop